SFM-122-L2-H-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-122-L2-H-D-A-K is a 44-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in surface-mount configuration. Gold-plated contacts deliver consistent low-resistance performance across hundreds of mating cycles for high-density board-to-board interconnect. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- SFM-122-L2-H-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 44-position dual-row socket strip at 0.050" (1.27 mm) pitch providing 22 contacts per row in a compact SMT footprint of approximately 27.94 mm
- Gold-plated contacts maintaining contact resistance below 20 mΩ throughout rated mating cycle life for stable signal integrity
- High-reliability design suitable for removable mezzanine and daughter-card modules requiring repeated insertion and removal
- Surface-mount termination style compatible with standard lead-free reflow soldering processes up to 260°C
Applications
The SFM-122-L2-H-D-A-K is specified in high-density mezzanine board stacking, FPGA expansion card interfaces, and communications line card interconnects where 44 positions must be accommodated within a minimal PCB footprint. Its 0.050" pitch dual-row layout achieves a connector body length of approximately 27.94 mm, making it possible to route 44 channels in roughly half the PCB edge length required by equivalent 0.100" pitch alternatives. Engineers in aerospace instrumentation and high-performance computing platforms also select this connector where shock and vibration tolerance at a compact form factor is a design priority.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal channels does the SFM-122-L2-H-D-A-K support, and what is its body length?
The SFM-122-L2-H-D-A-K provides 44 signal positions arranged in a dual-row layout with 22 contacts per row at 0.050" (1.27 mm) pitch. The total connector body length is approximately 27.94 mm, supporting 44 channels at a pitch that is half the spacing of standard 2.54 mm alternatives, maximizing signal density per unit board length.
How does the SFM-122-L2-H-D-A-K compare to a 0.100" pitch 44-position connector in board space consumption?
At 0.050" (1.27 mm) pitch, the SFM-122-L2-H-D-A-K body spans approximately 27.94 mm, whereas an equivalent 44-position dual-row connector at 0.100" (2.54 mm) pitch would span approximately 55.88 mm. Choosing the 0.050" pitch version saves roughly 28 mm of board edge length, a critical advantage in high-density PCB layouts where every millimeter of board real estate has measurable cost impact.
What industries or system types most commonly specify the SFM-122-L2-H-D-A-K?
Aerospace instrumentation, high-performance computing, and FPGA-based signal processing systems are the primary users of 44-position 0.050" pitch dual-row socket strips. These sectors demand both high pin counts for data bus or I/O connectivity and compact connector profiles that keep module dimensions below standard mezzanine form factors such as the 70 mm by 70 mm XMC or 68.6 mm by 149.9 mm PMC size standards.
What mating connector is designed to pair with the SFM-122-L2-H-D-A-K socket strip?
SAMTEC's SFM series socket strips are designed to mate with corresponding SFM or TFM series dual-row plug connectors on the same 0.050" (1.27 mm) pitch. Gold-to-gold contact engagement across all 44 positions ensures initial contact resistance below 20 mΩ and stable electrical performance after 500 or more mating cycles, meeting typical qualification criteria for board-swap serviceable module interfaces.
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